Mechanism for oxidizing, reducing, or otherwise treating ores and other materials.



F. VON SGHLIPPENBACH. MECHANISM FOR OXIDIZING, REDUCING, on OTHERWISE TREATING (ms AND OTHER MATERIALS.

APPLICATION IILEU JAN.21,1U10.

1,1 19%59. Patented Dec.11914.

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FELIX VON SCHLIPPENBACH, OF STOLBERG, BINSFELDHAMMER, GERMANY, ASSIGNOR, BY MESNE ASSIGNMENTS, TO DWIGHT & LLOYD SINTERING COMPANY, INCOR- PORATED, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

MECHANISM FOR OXIDIZING, REDUCING, OR OTHERWISE TREATING ORES AND OTHER MATERIALS.

Specification of Letters Patent.

Patented Dec. 1, 1914.

Application filed January 21, 1910. Serial No. 539,235.

To all whom it may concern:

Be it known that I, FELIX VON SCHLIPPEN- BACH, a subject of the Emperor of Germany, residing at Stolberg, Binsfeldhammer, Rheinland, Germany, have invented certain new and useful Improvements in Mechanism for Oxidizing, Reducing, or Otherwise Treating Ores and other Materials, of which the following is a specification, reference being had therein to the ac-.

com anying drawings.

Tiie object of this invention 'is to provide an apparatus for uninterru tedly sintering, oxidizing, reducing, or ot erwise treating ores, metallurgical products, or other materials, by means of gases or air, conducted through them, the novelty consisting in this, that the material to be handled is placed on a horizontal, ring-shaped, or circular hearth with a perforated bottom, under which there is arranged a divided air chamber connected with it, the divisions of the air chamber being adapted to be automaticallyswitched in and out, in any desired number, the cut-off device being ,placed so far from the hearth that it is free from injurious action of dust and heat.

The advantages incident to this apparatus, in comparison with earlier ones, lie in this, that the o eration is continuous, all the steps constituting the total method taking lace simultaneously on one and the same liearth, and by which there are attained a considerable saving in time and an increase in output capacity. Moreover, the expense incident to human power is obviated by the cheaper mechanical power. A further advantage consists in this, that the earlier constructlons utilized only a certain, and smaller, part of the hearth, while with the present method practically the entire hearth is in use, only a small part, approximately one-fourth being switched out.

In the drawin s there are presented: Figure 1, which is a ongitudinal section through V finished product.

The hearth, as an entirety, is ring shaped fitted the ducts 3.

or circular in form. It is indicated, as a whole, by the numeral 1 and comprises the downwardly converging side walls 14, and the bottom 1, which is perforated to perm1t passage therethrough. The latter may be composed of sections, 18, or may be made in one piece, and is adapted to have the air and gases pass through it. The bottom plate or plates may be cast or otherwise ormed integrally with the hearth structure or they tachably is the 8.11 chamber 2 communicating with the perforations or passages in the bottom, this air-chamber comprising several sub-divisions. The partition walls formin these sub-divisions may be either integral wlth the hearth structure or separately formed and secured in place. From the sub-divisions or chambers, 50 provided, extend ducts 3 of any desired form, which are brought to a common chamber 5. This is preferably formed of a stationary cylindrical part 4", and a seal chamber at 4, the lower portion of the former fitting in the latter. The chamber 4 is adapted to rotate with the movable part of the structure and is sand, mercury, or other suitable sealing ma terial. To the bell part or cylinder 5 there is connected the duct 6 adapted to permit the passage of air or gas.

In the structure shown, there is below the hearth and the air chambers, a supporting and carrying frame, and to the latter there is fastened a ring 7 resting on guiding rollers 9, which in turn rest and roll upon a circular rail 8 secured to the foundation of the apparatus. At the vertical axis of the mechanism there is a king pin 10 mounted in a bearing this acting to The rotation of the hearth and the parts may be separately formed and defitted in place. Under the bottom filled with water,

supported on the foundation,

connected therewith can be accomplished in any suitable way, well known to engineers, as bya toothed ring and a power-driven pinion.

The bottom part of the receiver or hell cylinder 5,is closed by a plate or diaphragm 11 secured to the inner wall of the seal chamber 4, and having aperti'ires l3 in which are 12 indicates a cut ofi device which may consist of one or more plates, there being one shown. Instead of these, suitable cutofi balls, valves, or equivalents, may be employed. The single cut-ofi plate 12 illustrated is adapted to close three of the ducts 3 at a time, as the series of ducts rotate thereunder. in an'ysuitable way ing supported from chamber 5. As shown there is one duct. 3 for each'of the air compartments under the grate. three of the ducts, the passage ofairand gas to and from their air chambers 2 and the corresponding sections of the hearth is stopped; and-at such' time the finished product can be removed from the hearth without loss of air or gas and without variation in the pressure on the greater part (say, three-fourths) of the hearth which'is still operated. At lfi-the're isa hopper for in-" j troducing cold materialto be treated ina layer of suitable depth, and M17 there isa 25 hopper for introducing 'hot' materialiin a stream or layer of suitable depth:

as for instance by he- The finished product will be withdrawn from the grateby means of a proper 1n clined removing device 15 the lower edge of face of the grate or bottom 1. As shown,

- it -consists of a and through which everything falls which isin particles too small to be utilized advantageously in the later treatment.

In practising the process the lower edg of the removing device 15 operates to re-' move from the grate and break u the finished material.

from the grate sift through the back upon the grateor hearth 1 and thus constitute a protecting and inertla'ycr for the hearth below the ore that is'to be treated, while the-larger pieces of the finished material pass on to the imperforate part of the device'15 whence they may be removed, either by hand or otherwise, as may be con-" f into the 'seal chamber, a ductleading "or 115 It is to be noted that the hearth can be" held stationary and the other partsjot the venient.

apparatus can be rotated, such as the-hop pers 16 and 17, the removingdevice-15 and stationar the devices last specified and ro- I tate the earth and parts attachedthereto,

' combination of a pervious support on which as above described.

What I claim is:

of ducts communicating respectively with aa the said sub-divisions of the air or gas It may be held and operated analror i support, divided into sub-divlsions, a series the bell inclosing the. I

of ducts communicating respectively with While the cut-0d plate is closing" which rests. upon or is held close to the surrate-like, element 20 over.

which pass the arger pieces or particles 4. In a mechanism I pass through the ore The finer partic es lifted grate-like section 20 of the removing device and'tall" t-he cut-0d 12. However, I prefer tohold- 1. In an apparatus for sinterin'g or roastaaiaaea chamber, a. common conduit to which the said ductslead, and a single device arranged to successively cut oft the communication through the said ducts, betweenthe said sub-divisions of the air or gas chamber and 70 the said common conduit. ,j

2. In an 'apparat us tor sintering or roasting ore,-the combination of an ore support, as chamber adjacent to the ore the said sub-divisions of the air or gas chamber, a common chamber to which the said ducts lead and a cut ofi located within the said chamber arranged to successively so close communication between the said subdivisions of the air or .gas'chamber and the common chamber, through the said ducts.

3 In an apparatus for sintering or roasting ore, the combination of a horizontally a5 rotata'bleore' support, a series of air or gas chambers located belowthe supportfa series of ducts communic'atin respectively with the" said air or gasc ambers, acentral chamber, a perforated diaphragm closing no one end of the said chamberpthe saidducts communicating with the chamber through the perforations in the said diaphra 'm', and a cut ofi device located withint c said chamber, arranged to successively close the ends of the ducts which communicate with the central chamber, for sintering or treat-i ing ore the combination of a horizontally rotatable hearth adapted to have air or gas thereon, air ducts'extendin from the hearth toward the vertical axis t ereof and corianriunicatin v with a chamber fora'ir org'as, sealing devices rotatable'with the hearth for. closing the said chamber to .the outside atmosphere, and means in the said chamber-tor opening and; closin the ducts,"substantially as set forth,

5. fin a mechanism'for treating ore, the combination of ahorizontallydisposed an: no

nula'rhearth upon which the ore may be supported and treated, a, seal chamber located within the eentral- -space inclosed by the hearth, a bell-like receiver'twhich sets the ore is supported ina thin layer, and

means for removing the sintered ore from the support, comprlsing a-screening sectionarranged to allow the finer particles to sift through it and return to the sup ort "while the larger particles are retaineditli'ereby.

it in an apparatus for sintering ore, the we support anctthe said removing device being movable one with reference to the other.

In testimony whereof I affix my signature, in presence of two witnesses.

FELIX VON SCHLIPPENBACH. WVitnesses:

FREDERICK ACHENBAGH, HENRY QUADFLIEG. 

